Can you verify that the oil passage between the cam bearing and the oil hole at the top of the deck between cylinders #1 and #3 is open? Hold a light in the cam bearing that feeds drivers side head and then look down thru the oil hole on the deck maybe? Run a stiff wire like a coat hanger down thru the oil hole from the deck and see if it protrudes into the cam bearing? Also, since you have the drivers side head off, verify that the oil passage in the head isn't blocked between the 2nd rocker stand from the left and the head surface. If that checks out ok, look at your cam you pulled out and see if the round that spins in the 2nd bearing has a groove or holes in it to transfer the oil up thru the passage to the head, and on to the rockers. If all that checks out, the only thing left is the shaft the rockers ride on, or the head bolt you're using in the hole where the oil passage is might be too big or does not have a taper on it to allow oil to get by the head bolt and up into the rockers on that side. If you're running head studs, that may very well be the problem. To check the rocker shafts to see if they're stopped up, knock the plugs out of each end and run a brush thru them end to end and wash them out with solvent. You'll have to buy new plugs for the ends afterwards. That's all I can think of in this long winded AJ type reply!
